Outlets, switches & breakers

Should you get a whole-house surge protector

A whole-house surge protector at the panel guards all your circuits and appliances from major surges, complementing rather than replacing individual power strip protectors.

Difficulty
Professional only
Time
1–2 hours to install
DIY cost
$0
Pro cost
$300–$600

Symptoms

  • Repeated damage to electronics or appliances after storms
  • Frequent power flickers or brief outages in your area
  • Currently relying only on individual outlet surge strips

Likely causes

  • CommonNo panel-level surge protection currently installedMany older homes only rely on point-of-use power strips, which have limited capacity compared to a panel-mounted device.
  • PossibleFrequent utility-side surges or lightning in your areaAreas with frequent storms or unstable grid power benefit more from whole-house protection.
  • PossibleHigh-value electronics or appliances at riskSmart appliances, home theater equipment, and HVAC control boards can be expensive to replace after surge damage.

What to do

  1. Review whether you've had repeated electronics or appliance damage after storms or power blips.
  2. Check whether your panel already has a surge protection device installed; some newer panels include one.
  3. Consider your area's storm frequency and grid reliability when weighing the investment.
  4. Ask an electrician about a Type 2 surge protective device installed at your main panel.
  5. Keep using point-of-use surge strips for sensitive electronics even after adding whole-house protection, since it adds a second layer.
  6. Confirm the device is UL listed and properly rated for your panel and service size.
  7. Have the device inspected periodically, since surge protectors can wear out after absorbing surges.

Tools and parts

Whole-house surge protective deviceSearch: “type 2 whole house surge protector”

When to call a pro

Have a licensed electrician evaluate and install a whole-house surge protector if you've had repeated surge damage or live in a storm-prone area.

Safety

Generally low risk

Generally low risk for a careful person. Stop if anything looks different from what this guide describes.

Related guides

Operator provides AI-generated troubleshooting information. It can be wrong. For safety-critical, electrical, gas, structural, medical, automotive safety, or other high-risk problems, consult a qualified professional.